u-boot.git/include/scmi_protocols.h, branch v2026.04

firmware: scmi: Add clock v3.2 CONFIG_SET support

2025-11-10T12:57:42+00:00

SCMI v3.2 introduces a new clock CONFIG_SET message format that can
optionally carry also OEM specific configuration values beside the usual
clock enable/disable requests. Add support to use such new format when
talking to a v3.2 compliant SCMI platform.

Support existing enable/disable operations across different clock protocol
versions: this patch still does not add protocol operations to support the
new OEM specific optional configuration capabilities.

No functional change for the SCMI drivers users of the related enable and
disable clock operations.

[Marek: Remodel after Linux e49e314a2cf7 ("firmware: arm_scmi: Add clock v3.2 CONFIG_SET support")
        Support both old < 2.1 and new >= 2.1 protocol versions.
	Update commit message based on Linux one]

Signed-off-by: Vinh Nguyen 
Signed-off-by: Marek Vasut 
Reviewed-by: Alice Guo 
Signed-off-by: Peng Fan

firmware: scmi: Fix up code comments

2025-11-10T12:57:40+00:00

Fix multiple instances of copy-paste errors. Fill in missing
headers for CLOCK_GET_PERMISSIONS message and response.

Signed-off-by: Marek Vasut 
Reviewed-by: Alice Guo 
Signed-off-by: Peng Fan

firmware: scmi: Support probe vendor ID 0x80 and 0x82

2025-10-24T19:47:50+00:00

Preparing to add i.MX LMM and CPU protocol driver, support probe SCMI
vendor ID 0x80(i.MX SCMI LMM ID) and 0x82(i.MX SCMI CPU ID). And use
Kconfig option to support conditional compilation.

Signed-off-by: Peng Fan 
Reviewed-by: Alice Guo

firmware: scmi: Cleanup the SCMI MISC ID

2025-10-24T19:47:50+00:00

SCMI_IMX_PROTOCOL_ID_MISC was never used, so drop it. And move
SCMI_PROTOCOL_ID_IMX_MISC out of enum scmi_std_protocol to
scmi_nxp_protocols.h, because it is i.MX specific and following Linux
Kernel style, use macro definition.

Signed-off-by: Peng Fan 
Reviewed-by: Alice Guo

firmware: scmi: Add error code IN_USE

2025-10-09T20:16:11+00:00

In SCMI spec 3.2, there is an update:
Add IN_USE error code for usage with Pin control protocol

So add the error decoding for IN_USE.

Signed-off-by: Peng Fan

clk: scmi: add compatibility with clock protocol 2.0

2025-06-11T07:42:55+00:00

Since clock protocol 2.0, SCMI specification add an option field
"clock_enable_delay" to CLOCK_ATTRIBUTES command.

scmi_read_resp_from_smt() will return an error ("Buffer too small") as
the message length coming from the SCMI server is not the same as expected.

So implement a condition to SCMI clock protocol version to change the
length of the expected message.

Signed-off-by: Valentin Caron 
Signed-off-by: Patrice Chotard 
Cc: Lukasz Majewski 
Cc: Sean Anderson 
Reviewed-by: Patrick Delaunay 
Reviewed-by: Patrice Chotard

scmi_protocols: update struct scmi_base_discover_list_protocols_out

2025-05-03T19:55:32+00:00

@protocols is an array of protocol identifiers that are implemented,
excluding the Base protocol. Four protocol identifiers are packed into
each array element. The number of elements of @protocols is specified by
callee-side.

Signed-off-by: Ye Li 
Signed-off-by: Alice Guo

clk: scmi: check the clock state/parent/rate control permissions

2025-05-03T19:55:32+00:00

Clock driver based on SCMI clock management protocol in Linux checks
clock state, parent and rate control permissions. To be consistent with
the kernel driver, add this check here. CLOCK_GET_PERMISSIONS is from
ARM System Control and Management Interface Platform Design Document 3.2.

When using common clock framework (CCF), use the clock signal ID to get
the clock registered by clk_register() in scmi_clk_probe(), and then
obatin the struct clk_scmi variable with container_of().

Signed-off-by: Alice Guo 
Signed-off-by: Ye Li 
Reviewed-by: Peng Fan

clk: scmi: add the command CLOCK_PARENT_SET

2025-05-03T19:55:32+00:00

This patch adds the command CLOCK_PARENT_SET that can be used to set the
parent of a clock. ARM SCMI Version 3.2 supports to change the parent of
a clock device.

Signed-off-by: Peng Fan 
Signed-off-by: Alice Guo 
Reviewed-by: Ye Li 
Reviewed-by: Marek Vasut

scmi_protocols: add SCMI Performance domain management protocol message IDs

2025-05-03T19:55:32+00:00

SCMI Performance domain management protocol is intended for performance
management of groups of devices or APs that run in the same performance
domain. The functionality provided by the callee-side can be used by
passing the corresponding message_id.

Signed-off-by: Peng Fan 
Signed-off-by: Alice Guo 
Reviewed-by: Ye Li 
Reviewed-by: Marek Vasut